Indovance Civil Engineer interview questions

There were tatal 4 rounds 1st aptitude (General Aptitude +Technical civil related) 2nd Technical Discussion. 3rd Model Test. 4th HR round. I have cleared all 3 rounds and HR round also went well. Still I got rejection mail. Not sure what they are expecting from freshers. Or they are just trying to interview as many people as possible and reject them in hr. Pathetic company. Playing with candidates emotions as we are fresher and we are in desperatly need a job.Very bad bad attitude of company towards candidates.